Slide Rail Support Structure for Full-Extension Load Capacity
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Solution Overview
Problem
In rack-based server systems, the slide rail assembly leaves a section of the second rail unsupported when both rails are extended, which affects the load capacity, particularly when the third rail is mounted with electronic equipment.
Innovation Solution
A supporting base is introduced, movably connected to a bracket base, which forms a supporting channel corresponding to the longitudinal channel of the first rail, providing additional support to the second rail when it is extended by including transverse supporting portions and a contact mechanism to adjust its position relative to the bracket base.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If the second rail is extended relative to the first rail, then the slide rail assembly achieves full extension for chassis mounting, but a section of the second rail becomes unsupported reducing load capacity
Solution Approach 1:
A supporting base is introduced as an intermediary component between the first rail and the second rail. The supporting base includes supporting portions that contact and support the second rail when it is in the extended position, providing additional load-bearing capability to the otherwise unsupported section of the second rail.
Solution Approach 2:
The support structure is segmented into multiple components: the bracket base connected to the first rail, and the supporting base with supporting portions that can be positioned at different locations along the second rail. This segmentation allows support to be provided at specific critical points without constraining the overall extension movement.
2Strength
If the supporting base is added to support the second rail, then the load capacity is enhanced, but the device complexity increases
Solution Approach 1:
The supporting base is designed to be movable relative to the bracket base, allowing it to dynamically adjust its position and orientation to accommodate the extension and retraction movements of the second rail. This dynamic design provides support only when needed during extension, rather than requiring a complex fixed support structure throughout the entire mechanism.
Data Source
AI summary
A slide rail assembly includes a first rail, a second rail, a bracket base, a supporting base, and a contact member. The second rail is movably connected to, and longitudinally displaceable relative to, the first rail. The bracket base is connected to the first rail. The supporting base is movably mounted to the bracket base. The contact member is fixedly attached to the second rail and has a contact portion. The supporting base has a first feature corresponding to the contact portion of the contact member. When the second rail is pulled out relative to the first rail, the supporting base is displaced by the contact member so as to support the second rail.